Add warning about future computation change for ConvTranspose with au…

…to_pad (#11984)

* Add warning about future computation change for Convtranspose with auto_pad

* improve msg

* update TODO to make lint happy

* update more contents for warning and add if

* valid was not infected

* move it into kernel registration

* parse auto_pad myself

* try to use conv_transpose_attrs_.auto_pad directly

onnxruntime/core/providers/cpu/nn/conv_transpose.h

@@ -25,7 +25,15 @@ namespace onnxruntime {
 template <typename T>
 class ConvTranspose : public OpKernel {
  public:
-  ConvTranspose(const OpKernelInfo& info) : OpKernel(info), conv_transpose_attrs_(info) {}
+  ConvTranspose(const OpKernelInfo& info) : OpKernel(info), conv_transpose_attrs_(info) {
+    if (conv_transpose_attrs_.auto_pad == AutoPadType::SAME_UPPER ||
+        conv_transpose_attrs_.auto_pad == AutoPadType::SAME_LOWER) {
+      // TODO(jcwchen): #9740 ORT 1.13 will correct the logic by switching them to meet ONNX spec
+      LOGS_DEFAULT(WARNING) << "The existing bug in the padding distribution for auto_pad type"
+                            << " SAME_UPPER/SAME_LOWER will be fixed in next ORT 1.13 release and hence the"
+                            << " results of ConvTranspose operator using the above auto_pad type(s) will be different.";
+    }
+  }
 
   Status PrePack(const Tensor& tensor, int input_idx, AllocatorPtr alloc,
                  /*out*/ bool& is_packed,